>who else speaks Russian?
Well, to keep things real a bit, for a first a Russians speak russian, those who were born and raised there, and if the parents are smart enough also those who grow up as descendants of russian parents.
Sergei Brin – if I like him or not – would certainly be among those, and it doesn't automatically imply he's a clown.
You'd also have lots of people who grew up behind the "Iron Curtain" esp. in slavic countries, not only a few of whom know russian as well, and may have emigrated to the US.